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MathGroup Archive 2006

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Re: How to solve this equation?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg72209] Re: How to solve this equation?
  • From: dh <dh at metrohm.ch>
  • Date: Thu, 14 Dec 2006 05:49:35 -0500 (EST)
  • Organization: hispeed.ch
  • References: <eloqvd$o2j$1@smc.vnet.net>


Hi,

here is the correct syntax:

DSolve[{y'[x]+y[x]Tan[x]\[Equal]Sin[2x],y[0]\[Equal]2},y,x]

Daniel



learner wrote:

> hi,

> I am trying to solve  y'+y tanx=sin(2x)

> 

> i wrote NSolve[{Derivative[1][y][x]+y Tan[x]==Sin[2x]},y,x] but get

> something like

> 

> {{y->cot[x](sin[2x]-y`[x]}}

> 

> I want to set a restraint to say y=2 when x=0, how shoud i do it?

> 

> many thanks!!!

> 



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